1646423150361 has 32 divisors (see below), whose sum is σ = 2520948180480. Its totient is φ = 945273888000.

The previous prime is 1646423150357. The next prime is 1646423150377. The reversal of 1646423150361 is 1630513246461.

It is a happy number.

It is not a de Polignac number, because 1646423150361 - 2² = 1646423150357 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1646423150381) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20274906 + ... + 20355948.

It is an arithmetic number, because the mean of its divisors is an integer number (78779630640).

Almost surely, 2^{1646423150361} is an apocalyptic number.

1646423150361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1646423150361 is a deficient number, since it is larger than the sum of its proper divisors (874525030119).

1646423150361 is a wasteful number, since it uses less digits than its factorization.

1646423150361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113477.

The product of its (nonzero) digits is 311040, while the sum is 42.

The spelling of 1646423150361 in words is "one trillion, six hundred forty-six billion, four hundred twenty-three million, one hundred fifty thousand, three hundred sixty-one".